32437162640 has 40 divisors (see below), whose sum is σ = 75458613048. Its totient is φ = 12967603200.

The previous prime is 32437162631. The next prime is 32437162649. The reversal of 32437162640 is 4626173423.

It is an interprime number because it is at equal distance from previous prime (32437162631) and next prime (32437162649).

It can be written as a sum of positive squares in 4 ways, for example, as 2339076496 + 30098086144 = 48364^2 + 173488^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 32437162594 and 32437162603.

It is not an unprimeable number, because it can be changed into a prime (32437162649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31514 + ... + 256646.

Almost surely, 2^32437162640 is an apocalyptic number.

It is an amenable number.

32437162640 is an abundant number, since it is smaller than the sum of its proper divisors (43021450408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32437162640 is a wasteful number, since it uses less digits than its factorization.

32437162640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226947 (or 226941 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 32437162640 in words is "thirty-two billion, four hundred thirty-seven million, one hundred sixty-two thousand, six hundred forty".